Evan has a great set up of accommodations. Do yourself a favor and book at his place when you can. He is superb with offering a syllabus style pamphlet of things to do aside from the normal tourist stuff and offers out of the way places to eat too. (Which I totally hit up every day....GREEEEEEEN teaaaaa, 20 baht, YESSSSSS). HAHA.
When he is around he is willing to chat you up and give you better ideas than you might have on your agenda. Thank you for the heads up on Vertigo Bar. The a/c works great and the rooms cool up quickly. The public transportation is nearby and walking is a part of sightseeing so his location is a prime spot for park jogging and metro grabbing.
He is a solid fella and is there for his guests. Do yourself a favor and grab a good, inexpensive solid place to stay at his housing.